public override int GetHashCode()
        {
            int hashCode = -747213754;

            if (FulfillmentTypes != null)
            {
                hashCode += FulfillmentTypes.GetHashCode();
            }

            if (FulfillmentStates != null)
            {
                hashCode += FulfillmentStates.GetHashCode();
            }

            return(hashCode);
        }
        public override bool Equals(object obj)
        {
            if (obj == null)
            {
                return(false);
            }

            if (obj == this)
            {
                return(true);
            }

            return(obj is SearchOrdersFulfillmentFilter other &&
                   ((FulfillmentTypes == null && other.FulfillmentTypes == null) || (FulfillmentTypes?.Equals(other.FulfillmentTypes) == true)) &&
                   ((FulfillmentStates == null && other.FulfillmentStates == null) || (FulfillmentStates?.Equals(other.FulfillmentStates) == true)));
        }